132 citations · 181 across the 4 of their papers we have counts for
4 papers
The Ultraluminous X-ray Sources NGC 1313 X-1 and X-2
R. Turolla, P. Mucciarelli, L. Zampieri +3
We present a detailed analysis of XMM archival data of two Ultraluminous X-ray Sources (ULXs) in the nearby spiral galaxy NGC 1313: NGC 1313 X-1 and X-2. The spectral continuum of…
Spectroscopy of BL Lac Objects: new redshifts and mis-identified sources
N. Carangelo, R. Falomo, J. Kotilainen +2
We are carrying out a program of high signal to noise optical spectroscopy of BL Lacs with unknown or tentative redshift. Here we report some preliminary results. New redshifts are…
HST Observations of the Optical Jets of PKS 0521-365, 3C371, and PKS 2201+044
R. Scarpa, C. M. Urry, R. Falomo +1
HST observations have led to the discovery of the optical counterpart of the radio jet of PKS 2201+044, and to a detailed analysis of the optical jets of PKS 0521-365 and 3C371. At…
The discovery of polarization in the afterglow of GRB 990510 with the ESO Very Large Telescope
R. A. M. J. Wijers, P. M. Vreeswijk, T. J. Galama +12
Following a BeppoSAX alert (Piro 1999a) and the discovery of the OT at SAAO (Vreeswijk et al. 1999a), we observed GRB 990510 with the FORS instrument on ESO's VLT Unit 1 (`Antu').…